UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Boater Sam · 7th Aug 2018, 9:21 am

Learn how to really use your multimeter on all ranges.

Lamp limiter is the way to go, saves blowing fuses, saves damaging things, saves frightening yourself from big BANGS.

The set has a proper isolating transformer so you can put an earth wire onto the chassis and a 13A plug with a 1 amp fuse from the get go. 3A fuse if you can't find a 1A.

The wax tubular capacitors (caps) are suspect as are the small tubular plastic ones that will shed their coatings when touched.
Do not change any flat wax caps, they are silver mica and very rarely faulty.

Don't wade in changing anything, establish if it works as a whole or in part first.
Get the power supply working, then the audio stages then the rest.
Change one part at a time and test that the set still "works" as it did before, this way you find any introduced faults (mistakes) straight away.

At 16 you will get as much help as you ask for, we are really pleased that someone not of pensionable age is interested in this hobby.

If you want bits, ebay is handy but I'll bet if you ask, you will get them from folks here free and gratis.

Sam.

7th Aug 2018, 9:21 am	#6
Boater Sam Banned Join Date: Dec 2013 Location: Middlewich, Cheshire, UK. & Winter in the Philippines. Posts: 3,897	Re: Bush VHF61 restoration Learn how to really use your multimeter on all ranges. Lamp limiter is the way to go, saves blowing fuses, saves damaging things, saves frightening yourself from big BANGS. The set has a proper isolating transformer so you can put an earth wire onto the chassis and a 13A plug with a 1 amp fuse from the get go. 3A fuse if you can't find a 1A. The wax tubular capacitors (caps) are suspect as are the small tubular plastic ones that will shed their coatings when touched. Do not change any flat wax caps, they are silver mica and very rarely faulty. Don't wade in changing anything, establish if it works as a whole or in part first. Get the power supply working, then the audio stages then the rest. Change one part at a time and test that the set still "works" as it did before, this way you find any introduced faults (mistakes) straight away. At 16 you will get as much help as you ask for, we are really pleased that someone not of pensionable age is interested in this hobby. If you want bits, ebay is handy but I'll bet if you ask, you will get them from folks here free and gratis. Sam.